Style: reformat dispatcher.py with ruff

Author: [email protected]

src/memos/mem_scheduler/task_schedule_modules/dispatcher.py

@@ -303,9 +303,7 @@ def _maybe_emit_task_completion(self, messages: list[ScheduleMessageItem]) -> No
         mem_cube_id = first.mem_cube_id
 
         try:
-            is_cloud_env = (
-                os.getenv("MEMSCHEDULER_RABBITMQ_EXCHANGE_NAME") == "memos-memory-change"
-            )
+            is_cloud_env = os.getenv("MEMSCHEDULER_RABBITMQ_EXCHANGE_NAME") == "memos-memory-change"
             if not is_cloud_env:
                 return